The first Disney animated movie to release in IMAX 3D.
Robert Zemeckis has stated previously that A Christmas Carol is one of his favorite stories dealing with time travel.
Jim Carrey has described the film as "a classical version of A Christmas Carol There are a lot of vocal things, a lot of physical things, I have to do. Not to mention doing the accents properly, the English, Irish accents. I want it to fly in the UK. I want it to be good and I want them to go, 'Yeah, that's for real.' We were very true to the book. It's beautiful. It's an incredible film."
This version is almost completely true to Dickens' classic novel. Some differences: In the book, we spend a lot more time in the present, especially at the houses of his employee and nephew. The novel also shows us strife around the globe - in caves and on ships - that is relieved by Christmas joy. Also, the whole "future" scene with the horse chase and Scrooge becoming smaller is not in the novel. In fact, the Ghost of Christmas Yet to Come in the novel is nearly immobile except for the pointing finger.
In the Cratchit home, there is a portrait of the story's author, Charles Dickens, hanging by the fireplace.
Jim Carrey, who plays the gnarled, elderly Scrooge, is 16 months younger than Colin Firth, who plays the young, strapping Fred.